August is another month that is associated with two birthstones: Peridot and Sardonyx. Originally, Sardonyx was August birthstone but since the Peridot was added, it has become the month's primary gem.
Peridot, also called "the Evening Emerald", is widely known for its brilliant and striking lime green color. The gem is said to have healing properties, magical powers, and can protect the wearer from nightmares. In Mohs scale, the gem falls in 6.5 - 7 levels of hardness.
Sardonyx comes in reddish zebra-striped color with white bands. The color varies depending on the amount of iron oxide present in the stone. Used as a stone of protection and strength in Ancient times, Sard is associated with clear communication, happiness, and courage.